The length of a rectangle is five times it’s with if the perimeter of the rectangle is 84 m find its length and width

Suppose you are going to conduct a two tail test concerning the population mean. Suppose that you do not know what the populatio

IRINA_888 [86]

Answer:

The critical value of t at 0.01 level of significance is 2.66.

Step-by-step explanation:

The hypothesis for the two-tailed population mean can be defined as:

H₀: μ = μ₀ vs. H₀: μ ≠ μ₀

It is provided that the population standard deviation is not known.

Since there is no information about the population standard deviation, we will use a t-test for single mean.

The test statistic is defined as follows:

$t_{cal.}=\frac{\bar x-\mu}{s/\sqrt{n}}\sim t_{\alpha/2, (n-1)}$

The information given is:

n = 55

α = 0.01

Compute the critical value of t as follows:

$t_{\alpha/2, (n-1)}= t_{0.01/2, (55-1)}=t_{0.005, 54}=2.66$

*Use a t-table for the value.

If the desired degrees of freedom are not provided consider he next highest degree of freedom.

Thus, the critical value of t at 0.01 level of significance is 2.66.

4 0

3 years ago

Graph the transformation of the figure.

yKpoI14uk [10]

This is pretty hard to answer completely because I can't graph it for you.

However, I can give you the coordinates by what the image provides.

For 7, there are 4 points:

(1, 4), (4, 4), (1, 1), (4, 1)

To translate, you can either look at it graphically or manually add/subtract numbers from the ordered pairs.

Remember that left/right applies to the x-coordinate and up/down applies to the y-coordinate:

(1-3, 4+4), (4-3, 4+4), (1-3, 1+4), (4-3, 1+4)

You get:

(-2, 8), (1, 8), (-2, 5), (1, 5)

Graph those and you'll get the translated rectangle.

Hope I helped :)

6 0

3 years ago

Estimate the square root to the nearest integer. -51

marissa [1.9K]

Answer:

49

Step-by-step explanation:

6 0

3 years ago

Why is the answer B? Plz explain.

polet [3.4K]

The original can be rewritten as $\sqrt{-1*6}* \sqrt{-1*24}$ . Because i^2 is equal to -1, we can replace the -1 in each radicand with i^2, like this: $\sqrt{i^2*6}* \sqrt{i^2*24}$ . Now, i-squared is a perfect square that can be pulled out of each radicand as a single i. $i \sqrt{6}*i \sqrt{24}$ . 24 has a perfect square hidden in it. 4 * 6 = 24 and 4 is a perfect square. So let's break this up, step by step. $i \sqrt{6}*i \sqrt{4*6}$ and then $i \sqrt{6}*2i \sqrt{6}$ . We will now multiply the i and the 2i, and multiply the square root of 6 times the square root of 6: $2i^2 \sqrt{36}$ . 36 itself is a perfect square because 6 * 6 = 36. So we will do that simplification now. $2i^2(6)$ . Multiplying the 2 and the 6 gives us $12i^2$ . But here we are back to the fact that i-squared is equal to -1, so 2(-1)(6) = -12. See how that works?

5 0

3 years ago

Read 2 more answers

In ΔJKL, j = 6.3 inches, l = 6.1 inches and ∠L=54°. Find all possible values of ∠J, to the nearest 10th of a degree.

melamori03 [73]

Answer:

56.7 and 123.3

Step-by-step explanation:

delta math

6 0

3 years ago